| Renata Video Productions Ltd | Agriculture & fishing | 2014 |
| Rentals (SW) Land Ltd | Real estate | 2026 |
| Rentals (SW) Ltd | Real estate | 2019 |
| Rentx Equipment Limited | Administrative & support | 2026 |
| Renvik Solutions PVT Ltd | Information & communication | 2025 |
| Renvilles Costs Lawyers & Consultants Limited | Professional & scientific | 2005 |
| Repay Solutions Limited | Information & communication | 2016 |
| Repeating History Limited | Education | 2017 |
| RES Agri (Holdings) Limited | Financial services | 2023 |
| Research Energy Limited | Professional & scientific | 2014 |
| Reservation Points Ltd | Wholesale & retail | 2023 |
| Resi Estates Management Limited | Extraterritorial | 2024 |
| Resi Property Management Limited | Real estate | 2020 |
| Residents Management (NO.35) Limited | Households | 1985 |
| Resin Revolution Ltd | Administrative & support | 2025 |
| Rest in Peace (RIP) Funerals Ltd | Other services | 2024 |
| Restcare Services (SW) Limited | Health & social care | 2013 |
| Restorations Proof Ltd | Professional & scientific | 2022 |
| Retailbox Limited | Wholesale & retail | 2023 |
| Retirement Rentals Limited | Real estate | 1997 |
| Retirement Rentals Nominee Company 1 Limited | Real estate | 2006 |
| Revclick Limited | Information & communication | 2024 |
| Revibez Ltd | Wholesale & retail | 2025 |
| Revivasouthwest Limited | Real estate | 2009 |
| Revive Mobility Ltd | Wholesale & retail | 2026 |
| Revlac Stones Ltd | Wholesale & retail | 2024 |
| Revsan Limited | Information & communication | 2018 |
| Rexton Barns Limited | Real estate | 2020 |
| Rexton Gorse Estate Limited Liability Partnership | | 2023 |
| Rgdyer Consulting Ltd | Health & social care | 2023 |
| Rgserviceandcare Limited | Health & social care | 2025 |
| Rheos Environmental Consulting Limited | Professional & scientific | 2022 |
| Rhfc (Holdings) Ltd | Financial services | 2014 |
| Rhino Renovators Ltd | Construction | 2022 |
| Rhodes House Farms Limited | Agriculture & fishing | 2015 |
| Ri-Dry Clothing Limited | Wholesale & retail | 2008 |
| Ri-Dry Limited | Wholesale & retail | 2008 |
| Richard Branfield Tree Surgery and Landscaping Limited | Administrative & support | 2021 |
| Richard C. Bircher (Holdings) Limited | Agriculture & fishing | 1976 |
| Richard Dalton Surgery Ltd | Health & social care | 2018 |
| Richard Huish Trust | Education | 2014 |
| Richard Tamlyn Limited | Professional & scientific | 2002 |
| Richard Wheeler Signs Limited | Professional & scientific | 2011 |
| Richards Land Management Ltd | Administrative & support | 2023 |
| Richards Poultry Limited | Agriculture & fishing | 2022 |
| Richards Renewable's Limited | Energy | 2014 |
| Richards Road & Rail Plant Services Ltd | Manufacturing | 2018 |
| Richflights Ltd | Transport & logistics | 2024 |
| Richmond Hatherly Ltd | Real estate | 2021 |
| Rick Stevenson Design Ltd | Professional & scientific | 2013 |
| Ricosheea Properties Ltd | Real estate | 2024 |
| Ridge Referrals Limited | Professional & scientific | 2011 |
| Ridlers Holdings Limited | Professional & scientific | 2017 |
| Ridlers Limited | Wholesale & retail | 2002 |
| Rietdekkersbedrijf Kleinjan Ommen LLP | | 2014 |
| RIF Campers Ltd | Administrative & support | 2021 |
| Right Place Education Ltd | Education | 2025 |
| Rightbuild Residential Ltd | Construction | 2018 |
| Rightspace Property Management Limited | Households | 1991 |
| Ring of Bells (Somerset) Limited | Hospitality | 2018 |
| Risdons Solicitors LLP | | 2024 |
| Rise Structural Engineers Ltd | Construction | 2010 |
| Risk Based Solutions Ltd | Professional & scientific | 2019 |
| Riva Joinery Limited | Manufacturing | 2025 |
| Riverfield Developments Limited | Construction | 2011 |
| Rivers Farm Limited | Agriculture & fishing | 1950 |
| Riverside Freight Management Ltd | Transport & logistics | 2026 |
| Riverside Holdings Taunton Ltd | Hospitality | 2020 |
| Riversmeet Limited | Professional & scientific | 2020 |
| Riverstone Productions Limited | Hospitality | 2024 |
| RJ & CA Down Limited | Agriculture & fishing | 2004 |
| RJ Case Properties Ltd | Construction | 2018 |
| RJ Knight Limited | Financial services | 2022 |
| RJ Rallings Ltd | Financial services | 2023 |
| RJC Property Development 2 Limited | Real estate | 2023 |
| RJC Property Development Limited | Real estate | 2022 |
| Rjhb Holdings Ltd | Professional & scientific | 2024 |
| RJJ Scaffolding Ltd | Construction | 2020 |
| Rjpharmacies Limited | Health & social care | 2016 |
| RJW Enterprises Limited | Real estate | 2000 |
| RK Automobile Group Ltd | Wholesale & retail | 2025 |
| RK Private Gym Limited | Arts & recreation | 2026 |
| RKM Garage Limited | Wholesale & retail | 2026 |
| RLB Contracting Limited | Financial services | 2024 |
| RLD EYE Surgery Limited | Health & social care | 2021 |
| RLR Holdings Limited | Financial services | 2016 |
| RLR M Sport Limited | Professional & scientific | 2008 |
| RLS Estates Limited | Construction | 2005 |
| RMA Environmental Ltd | Professional & scientific | 2009 |
| RMB Group Services Ltd | Construction | 2023 |
| RMB Holdings (Southwest) Limited | Financial services | 2020 |
| RMH U.K. Holdings Ltd | Other services | 2023 |
| RMK Contractors and Electrical Services Ltd | Construction | 2007 |
| RMS & AMS Holdings Ltd | Financial services | 2025 |
| RN & JN Investments Ltd | Real estate | 2022 |
| RNR Projects (Cotswolds) Ltd | Real estate | 2023 |
| RNR Projects Limited | Real estate | 2021 |
| Road Planing Supplies Limited | Water & waste | 2014 |
| Roameo Ltd | Arts & recreation | 2016 |
| ROB Case Ltd | Construction | 2019 |